Re: captcha ???
Re: captcha ???
- Subject: Re: captcha ???
- From: Chuck Hill <email@hidden>
- Date: Wed, 3 Dec 2008 11:43:45 -0800
On Dec 2, 2008, at 10:20 PM, Mitchell Smith wrote:
Greetings,
I can't resist the impulse to jump on my web accessibility soapbox
at this point and recommend that if you insist on using a visual
captcha in your web application, that you also provide an audio
alternative to those using assistive technology such as Apple's
VoiceOver or JAWS from Freedom Scientific.
Obviously screen reading technology is unable to read the graphics
presented in a visual captcha, making it very difficult for screen
reader users to register on your site.
Providing an audio alternative is not always practical, so listing
an email address on your signup form for people requiring some
assistance with the captcha is often a good compromise.
We are only talking about a very small percentage of users who are
likely to visit a given site, but it's still worth a couple of
minutes to consider web accessibility.
I'll keep it brief, but it goes with out saying there is a vast
quantity of information about web accessibility out there, just ask
Google.
Cheers,
Mitch
That is a good point. Ajax is another area that serious affects
accessibility. I have not seen much information on how to handle
that, other than to have a parallel, non-Ajax accessible page / site.
Chuck
----- Original Message ----- From: "Owen McKerrow" <email@hidden>
To: "WebObjects (Group)" <email@hidden>
Sent: Wednesday, December 03, 2008 10:04 AM
Subject: captcha ???
Hi All,
Does anyone have a suggestion regarding a free captcha generator,
that works well with WO ? We wouldn't complain at all if there was
some code you could throw our way in regards to implementing it
to. In fact we woudl be most grateful.
Thanks
Owen McKerrow
WebMaster, emlab
Ph : +61 02 4221 5517
http://emlab.uow.edu.au
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- Peter Jackson, "The Lord of The Rings"
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--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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